رجلي doesn't appear in Hans Wehr's Modern Standard Arabic dictionary, but Lane's Arabic-English Lexicon has 2 entries for it, distinguished by diacritics. Select one below for the full classical Arabic definition.

• رجْلَي

  رجْلَي ذ fem. of رَجْلَانُ: see رَاجِلٌ near the end of the paragraph. -b2- حَرَّةٌ رَجْلَي and A [stony tract such as is called] حَرَّة that is rough [or rugged], in which one goes on foot: or level, but abounding with …

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• رَجَلِيٌّ

  رَجَلِيٌّ ذ sing. of رَجَلِيُّونَ, which latter is applied, with the article ال to Certain men who used to run (كَانُوا يَعْدُونَ, so in the O and K, but in the T يَغْزُونَ [which is evidently a mistranscription], TA) up…

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